BRPI0708720A2 - dispositivo óptico; e método para a produção de um dispositivo óptico de múltiplas camadas - Google Patents
dispositivo óptico; e método para a produção de um dispositivo óptico de múltiplas camadas Download PDFInfo
- Publication number
- BRPI0708720A2 BRPI0708720A2 BRPI0708720-9A BRPI0708720A BRPI0708720A2 BR PI0708720 A2 BRPI0708720 A2 BR PI0708720A2 BR PI0708720 A BRPI0708720 A BR PI0708720A BR PI0708720 A2 BRPI0708720 A2 BR PI0708720A2
- Authority
- BR
- Brazil
- Prior art keywords
- layer
- light
- optical device
- carrier
- gaas
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
- G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
- G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
- G02B27/1033—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators having a single light modulator for all colour channels
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/149—Beam splitting or combining systems operating by reflection only using crossed beamsplitting surfaces, e.g. cross-dichroic cubes or X-cubes
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
- G02F1/1354—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied having a particular photoconducting structure or material
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/312—Driving therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3167—Modulator illumination systems for polarizing the light beam
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Light Receiving Elements (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77870406P | 2006-03-02 | 2006-03-02 | |
US60/778,704 | 2006-03-02 | ||
PCT/US2007/005531 WO2007103274A2 (en) | 2006-03-02 | 2007-03-02 | Optically addressed spatial light modulator and method |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0708720A2 true BRPI0708720A2 (pt) | 2011-06-07 |
Family
ID=38475451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0708720-9A BRPI0708720A2 (pt) | 2006-03-02 | 2007-03-02 | dispositivo óptico; e método para a produção de um dispositivo óptico de múltiplas camadas |
Country Status (13)
Country | Link |
---|---|
US (1) | US7440157B2 (ko) |
EP (1) | EP1989586B1 (ko) |
KR (1) | KR101059919B1 (ko) |
CN (1) | CN101421664B (ko) |
AU (1) | AU2007224108B2 (ko) |
BR (1) | BRPI0708720A2 (ko) |
CA (1) | CA2644283C (ko) |
HK (1) | HK1130093A1 (ko) |
IL (1) | IL193789A (ko) |
MY (1) | MY142754A (ko) |
RU (1) | RU2438152C2 (ko) |
TW (1) | TWI428659B (ko) |
WO (1) | WO2007103274A2 (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2653915B1 (en) * | 2006-06-02 | 2020-01-01 | Compound Photonics Limited | An optically addressed gray scale electric charge-accumulating spatial light modulator and a method of optically writing to it |
WO2008042859A2 (en) | 2006-09-29 | 2008-04-10 | University Of Florida Research Foundation, Inc. | Method and apparatus for infrared detection and display |
BR112012029738A2 (pt) | 2010-05-24 | 2016-08-09 | Nanoholdings Llc | método e aparelho para fornecer uma camada de bloqueio de carga em um dispositivo de conversão ascendente de infravermelho |
US8188501B2 (en) * | 2010-07-19 | 2012-05-29 | Li-Lin Chen | Optical device to emit polarized light |
MX2013014311A (es) * | 2011-06-06 | 2014-01-23 | Nanoholdings Llc | Dispositivo formador de imagenes de luz infrarroja que integra un dispositivo de conversion ascendente de luz infrarroja con un sensor de imagenesde semicoductor complementario de oxido de metal. |
US9437835B2 (en) | 2011-06-06 | 2016-09-06 | University Of Florida Research Foundation, Inc. | Transparent infrared-to-visible up-conversion device |
AU2012275060A1 (en) | 2011-06-30 | 2014-01-30 | Nanoholdings, Llc | A method and apparatus for detecting infrared radiation with gain |
WO2016031447A1 (ja) * | 2014-08-27 | 2016-03-03 | ソニー株式会社 | 投射型表示装置 |
WO2017039774A2 (en) | 2015-06-11 | 2017-03-09 | University Of Florida Research Foundation, Incorporated | Monodisperse, ir-absorbing nanoparticles and related methods and devices |
JP6609331B2 (ja) * | 2015-07-07 | 2019-11-20 | ビー.ジー. ネゲヴ テクノロジーズ アンド アプリケーションズ リミテッド、アット ベン−グリオン ユニヴァーシティ | Swirを目に見えるものへとアップコンバージョンする光学系 |
KR102529893B1 (ko) * | 2015-08-10 | 2023-05-08 | 삼성전자주식회사 | 메타 구조체 및 이를 포함하는 가변 광학 소자 |
US10816855B2 (en) | 2015-10-29 | 2020-10-27 | The Hong Kong University Of Science And Technology | Composite photoalignment layer |
US10747033B2 (en) * | 2016-01-29 | 2020-08-18 | Lawrence Livermore National Security, Llc | Cooler for optics transmitting high intensity light |
US10353210B2 (en) | 2016-10-18 | 2019-07-16 | Qualcomm Incorporated | Self-aligning travelling collimating lens for sweeping laser |
CN106873340B (zh) | 2017-03-17 | 2019-07-05 | 京东方科技集团股份有限公司 | 空间光调制器的寻址方法、全息显示装置及其控制方法 |
CN106647214B (zh) * | 2017-03-17 | 2019-02-12 | 京东方科技集团股份有限公司 | 空间光调制器的寻址方法、全息显示装置及其控制方法 |
WO2019106597A1 (en) * | 2017-12-01 | 2019-06-06 | 3M Innovative Properties Company | Thin multilayer reflector with uniform left bandedge |
US12044921B2 (en) | 2020-06-10 | 2024-07-23 | Agency For Science, Technology And Research | Spatial light modulator and method of forming the same |
KR102577874B1 (ko) * | 2021-12-16 | 2023-09-13 | 주식회사 셀코스 | 공간 광 변조기 및 그의 제조방법 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919335B2 (ja) * | 1976-11-26 | 1984-05-04 | 富士ゼロツクス株式会社 | 電子写真法 |
US4619501A (en) * | 1985-01-08 | 1986-10-28 | The United States Of America As Represented By The Secretary Of The Air Force | Charge isolation in a spatial light modulator |
US4787713A (en) * | 1987-05-22 | 1988-11-29 | The Mead Corporation | Transparent laser-addressed liquid crystal light modulator cell |
US5084777A (en) * | 1989-11-14 | 1992-01-28 | Greyhawk Systems, Inc. | Light addressed liquid crystal light valve incorporating electrically insulating light blocking material of a-SiGe:H |
US5153761A (en) * | 1990-03-20 | 1992-10-06 | Everex Systems, Inc. | High performance light valve having double layer photoconductor |
US5371399A (en) * | 1991-06-14 | 1994-12-06 | International Business Machines Corporation | Compound semiconductor having metallic inclusions and devices fabricated therefrom |
WO1994000803A1 (en) * | 1992-06-26 | 1994-01-06 | Hi Tek Illusions Australia Pty. Ltd. | A method of producing spectrographic images |
US5508829A (en) * | 1992-12-18 | 1996-04-16 | International Business Machines Corporation | LTG AlGaAs non-linear optical material and devices fabricated therefrom |
US5309262A (en) * | 1992-12-23 | 1994-05-03 | Xerox Corporation | Optically addressed light valve system with two dielectric mirrors separated by a light separating element |
US5637883A (en) * | 1995-02-27 | 1997-06-10 | The United States Of America As Represented By The Secretary Of The Navy | Optically addressed spatial light modulator using an intrinsic semiconductor active material and high resistivity cladding layers |
US6025950A (en) * | 1997-09-22 | 2000-02-15 | Coretek, Inc. | Monolithic all-semiconductor optically addressed spatial light modulator based on low-photoconductive semiconductors |
JP2000056331A (ja) * | 1998-08-04 | 2000-02-25 | Sony Corp | 光書き込み型液晶ライトバルブ装置とその製造方法 |
EP1074863B1 (fr) * | 1999-08-04 | 2015-03-04 | Asulab S.A. | Dispositif optique à réflexion de Bragg et procédés pour sa fabrication |
US6528827B2 (en) * | 2000-11-10 | 2003-03-04 | Optolynx, Inc. | MSM device and method of manufacturing same |
JP2004527783A (ja) * | 2000-12-20 | 2004-09-09 | イルジン ダイアモンド カンパニー リミテッド | デジタルライトバルブアドレス方法及び装置、並びにこれを導入したライトバルブ |
US20020196264A1 (en) * | 2001-01-25 | 2002-12-26 | Sarif, Inc. | Image compensation methods and apparatus using corrections zones |
WO2002073303A1 (en) * | 2001-03-13 | 2002-09-19 | Qinetiq Limited | Optically addressed spatial light modulator (oaslm) with dielectric mirror comprising layers of amorphous hydrogenated carbon |
US6771410B1 (en) * | 2003-06-18 | 2004-08-03 | Intel Corporation | Nanocrystal based high-speed electro-optic modulator |
WO2005116719A2 (en) * | 2004-05-24 | 2005-12-08 | Steridian Corporation | Transmissive, optically addressed, photosensitive spatial light modulators and color display systems incorporating same |
-
2007
- 2007-03-02 US US11/713,773 patent/US7440157B2/en active Active
- 2007-03-02 AU AU2007224108A patent/AU2007224108B2/en not_active Ceased
- 2007-03-02 TW TW96107105A patent/TWI428659B/zh not_active IP Right Cessation
- 2007-03-02 RU RU2008137378A patent/RU2438152C2/ru not_active IP Right Cessation
- 2007-03-02 BR BRPI0708720-9A patent/BRPI0708720A2/pt not_active IP Right Cessation
- 2007-03-02 MY MYPI20083380A patent/MY142754A/en unknown
- 2007-03-02 WO PCT/US2007/005531 patent/WO2007103274A2/en active Application Filing
- 2007-03-02 CA CA 2644283 patent/CA2644283C/en not_active Expired - Fee Related
- 2007-03-02 EP EP07752245.6A patent/EP1989586B1/en not_active Not-in-force
- 2007-03-02 KR KR1020087024126A patent/KR101059919B1/ko active IP Right Grant
- 2007-03-02 CN CN2007800128535A patent/CN101421664B/zh not_active Expired - Fee Related
-
2008
- 2008-08-31 IL IL193789A patent/IL193789A/en not_active IP Right Cessation
-
2009
- 2009-10-24 HK HK09109873A patent/HK1130093A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1989586A2 (en) | 2008-11-12 |
US20070216985A1 (en) | 2007-09-20 |
KR20080102278A (ko) | 2008-11-24 |
MY142754A (en) | 2010-12-31 |
HK1130093A1 (en) | 2009-12-18 |
CN101421664A (zh) | 2009-04-29 |
AU2007224108B2 (en) | 2011-04-07 |
IL193789A (en) | 2011-12-29 |
TW200801639A (en) | 2008-01-01 |
WO2007103274A3 (en) | 2008-11-13 |
RU2438152C2 (ru) | 2011-12-27 |
WO2007103274A2 (en) | 2007-09-13 |
RU2008137378A (ru) | 2010-04-10 |
EP1989586B1 (en) | 2018-05-09 |
CA2644283C (en) | 2014-01-07 |
AU2007224108A1 (en) | 2007-09-13 |
TWI428659B (zh) | 2014-03-01 |
US7440157B2 (en) | 2008-10-21 |
KR101059919B1 (ko) | 2011-08-29 |
EP1989586A4 (en) | 2011-08-03 |
CN101421664B (zh) | 2011-08-31 |
CA2644283A1 (en) | 2007-09-13 |
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